Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
WL

Wing Sum LEE — 3 Patents

IBItrec B.V.: 3 patents #22 of 72Top 35%
Schiedam, NL: #31 of 135 inventorsTop 25%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Wing Sum LEE has been granted 3 US patents while listed as an inventor at Itrec B.V.. The first was granted in 2021 and the most recent in August 2025. Wing Sum LEE ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Wing Sum LEE in Schiedam, NL.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
12378099 Heave compensated dual hoist crane Cornelis Martinus VAN VELUW, Ken Van Oijen 2025-08-05
12006189 Heave compensated dual hoist crane Cornelis Martinus VAN VELUW, Ken Van Oijen 2024-06-11
10974937 Crane housing for a crane and crane comprising said crane housing Joop Roodenburg, Theodorus Cornelis Joanes Maria Stijnman 2021-04-13